Gravity-triggered high-position water tank emergency automatic water draining device and use method thereof

Abstract

This invention provides a gravity-triggered high-level water tank emergency automatic water discharge device and its usage method, belonging to the technical field of emergency fire extinguishing equipment. The device includes a water tank support frame; a water tank body is mounted on top of the support frame; a water injection pipe is fixedly connected to one side of the water tank body; an emergency treatment box is mounted on one side of the support frame; a water discharge mechanism is installed inside the emergency treatment box; and a guide pipe is installed inside the support frame. This invention achieves automatic emergency water discharge through gravity-triggered pure mechanical linkage, requiring no additional power or manual operation. Synchronous linkage with the air intake balances the air pressure inside the tank to improve drainage efficiency. It is reliably sealed and suitable for emergency scenarios involving dangerous goods containers in ports, offering rapid response, simple structure, and low failure rate, effectively ensuring effective handling during the critical risk control period.

Description

Technical Field

[0001] This invention relates to the field of emergency fire extinguishing equipment technology, and in particular to a gravity-triggered high-level water tank emergency automatic water discharge device and its usage method. Background Technology

[0002] As global logistics hubs, ports and terminals undertake the storage and transshipment of large quantities of hazardous materials such as chemical reagents and lithium batteries, which are mostly packaged in specialized containers. However, containers lack effective safety protection capabilities in the event of sudden emergencies such as fires and explosions, which can easily trigger chain disasters, causing serious consequences such as equipment damage, casualties, and waterway blockages. Therefore, there is an urgent need for efficient emergency response equipment.

[0003] Currently, the most commonly used emergency cooling and firefighting equipment at ports and terminals is elevated water tanks, whose core function is to store fire-fighting water and irrigate damaged containers to cool them and control the risk. However, existing elevated water tanks have a critical drawback: once a damaged container is placed in the emergency area, it cannot automatically open its valves to release water; manual operation or reliance on electrically controlled valves is required, which introduces a delay of 3-5 minutes or even longer. The "golden period" for controlling the risk in hazardous materials accidents is only 10 minutes; delays can easily lead to the spread of fire and leaked substances, significantly increasing the difficulty and losses of handling the situation.

[0004] Furthermore, existing fire-fighting equipment is inadequate for port emergency needs. For example, Chinese patent CN2467600Y discloses a fire-fighting water supply system for roof pressure supplementation and stabilization in high-rise buildings. Its core function is to solve the problem of insufficient water pressure in high-rise buildings. It achieves air replenishment and pressure stabilization through solenoid valves, electrical control cabinets, etc. Its function focuses on water pressure supplementation. It relies on electric control drive and has no gravity-triggered mechanical structure, making it unsuitable for container emergencies. Another example is Chinese patent application CN116036520A, which discloses a fully integrated fixed compressed air foam generating device. This device is designed for ultra-high voltage converter stations and generates foam for fire extinguishing through motors, air compressors, etc. Its structure is complex and power-dependent. It lacks an automatic water release mechanism without power and cannot meet the port's need for rapid irrigation and cooling.

[0005] It is evident that the existing equipment mentioned above either has an incompatible functional positioning, or relies on additional power and has a delayed response, and cannot solve the core pain point of "rapid, automatic water release without power" in ports; therefore, the industry urgently needs to develop a high-efficiency emergency high-level water tank container adapted to this scenario to solve the technical defects in the existing technology. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies, such as mismatched functional positioning, reliance on additional power, delayed response, and inability to adapt to port scenarios, and to provide a gravity-triggered high-level water tank emergency automatic water release device and its usage method.

[0007] In a first aspect, the present invention provides a gravity-triggered high-level water tank emergency automatic water discharge device to solve the above-mentioned technical problems, comprising a water tank support frame; a water tank body is installed on the top of the water tank support frame, a water injection pipe is fixedly connected to one side of the water tank body, an emergency treatment box is installed on one side of the water tank support frame, a water discharge mechanism is installed inside the emergency treatment box, and a guide pipe is installed inside the water tank support frame; the water discharge mechanism includes a receiving bracket movably installed on the inner wall of the emergency treatment box, a first rotating shaft is installed on the outer wall of the receiving bracket, a transmission chain is fixedly connected to one side of the receiving bracket, a positioning block is installed at one end of the transmission chain, and a second rotating shaft is fixedly connected to the inner wall of the positioning block; the water discharge mechanism further includes a first rotating rod movably installed on the outer wall of the water tank body, a drain outlet baffle is installed on the outer wall of the first rotating rod, and a positioning pin is fixedly connected to one side of the drain outlet baffle.

[0008] This device can trigger a purely mechanical water release by the weight of the container itself, without the need for manual operation or additional power. It completely solves the problem of delayed emergency water release from traditional high-level water tanks, greatly improves the efficiency of handling hazardous materials accidents, and has a simple structure and high reliability, making it suitable for emergency scenarios at port terminals.

[0009] A further improvement of the present invention is that the receiving bracket forms a rotating structure with the emergency treatment box via a first rotating shaft, and the transmission chain is symmetrically arranged about the central axis of the receiving bracket.

[0010] This device, through the symmetrical arrangement of transmission chains and the cooperation of rotatable support brackets, ensures the stability and balance of power transmission, reduces the probability of mechanical failure, further improves the triggering reliability of the emergency water release device, and ensures a rapid response in the event of an accident.

[0011] A further improvement of the present invention is that the positioning block can form a rotating structure with the main body of the water tank via the second rotating shaft, the positioning block is provided with a U-shaped positioning groove, and the positioning block can be engaged with the positioning pin through the U-shaped positioning groove.

[0012] This device achieves reliable limiting of the drain outlet baffle through the interlocking design of the U-shaped positioning groove and the positioning pin, eliminating the risk of water leakage in non-emergency situations. At the same time, the rotatable positioning block ensures smooth release of the limit action, avoiding the impact of jamming on water discharge efficiency, and taking into account both the sealing performance and response speed of the device.

[0013] A further improvement of the present invention is that the drain outlet baffle can form a rotating structure with the main body of the water tank via the first rotating rod. The main body of the water tank is symmetrically arranged about the central axis of the water tank support frame, and the position of the drain outlet baffle corresponds to the inlet end of the guide pipe.

[0014] The symmetrical arrangement of the water tank body enhances the overall stability and water storage capacity of the device. The precise alignment of the drain outlet baffle and the guide pipe enables efficient water flow guidance, allowing fire water to be concentrated and poured onto the emergency container, improving the cooling and fire extinguishing effect while reducing water waste.

[0015] A further improvement of the present invention is that a first bevel gear is fixedly connected to the top end of the first rotating rod, a second bevel gear is meshed with the outer wall of the first bevel gear, a second rotating rod is fixedly connected to one side of the second bevel gear, a transmission gear is fixedly connected to one end of the second rotating rod, a transmission rack is meshed with the outer wall of the transmission gear, and a support block is movably connected to the outer wall of the second rotating rod, and the support block is fixedly connected to the main body of the water tank.

[0016] This device achieves synchronous triggering of water discharge and air intake preparation through the mechanical linkage of bevel gears and gear racks, eliminating the need for an additional drive mechanism and simplifying the device structure. The fixed design of the support block ensures the stability of the transmission process, avoids transmission deviation, and lays a reliable foundation for subsequent air pressure balancing.

[0017] A further improvement of the present invention is that a guide frame is movably connected to the outer wall of the transmission rack, the guide frame is a U-shaped structure and is fixedly connected to the main body of the water tank, and the transmission rack can form a sliding structure with the guide frame.

[0018] This device effectively prevents skewing and jamming during the movement of the transmission rack and pinion using a U-shaped guide frame, ensuring the smoothness and accuracy of the gear and rack transmission, thereby guaranteeing the reliability of the subsequent sealing plate action and improving the stability of the entire linkage system.

[0019] A further improvement of the present invention is that a receiving rod is fixedly connected to the top of the transmission rack, a sealing plate is fixedly connected to one end of the receiving rod, and an air inlet hood is fixedly connected to the top of the water tank body, with an air inlet hole provided inside the air inlet hood.

[0020] This device balances the air pressure inside and outside the water tank by synchronizing water discharge and air intake, which can prevent poor drainage caused by negative pressure inside the tank and greatly improve the drainage speed. The sealing plate design can prevent external debris from entering the water tank body, while reducing water evaporation, thus balancing drainage efficiency and device maintainability.

[0021] A further improvement of the present invention is that a guide slider is fixedly connected to the outer wall of the sealing plate, and a guide groove is provided inside the air intake shroud. The guide slider can form a sliding structure with the air intake shroud through the guide groove.

[0022] This device ensures the accuracy of the sealing plate's movement trajectory through the cooperation of the guide slider and guide groove, preventing it from deviating and causing incomplete sealing or opening of the air inlet, thus further improving the reliability of air pressure balance and the sealing performance of the device.

[0023] A further improvement of the present invention is that a rectangular sealing ring is fixedly connected to the top of the sealing plate, and a rectangular sealing groove is provided inside the air intake shroud. The rectangular sealing ring is adapted to the rectangular sealing groove and can form a snap-fit ​​connection.

[0024] This device significantly improves the sealing effect of the air inlet through the interlocking design of the rectangular sealing ring and the rectangular sealing groove. It can prevent water leakage and evaporation inside the water tank, and also prevent dust, impurities and other contaminants from entering the tank and polluting the water, thus extending the service life of the device and reducing maintenance costs.

[0025] Secondly, the present invention also provides a method for using a gravity-triggered high-level water tank emergency automatic water discharge device, comprising the following steps: S1. The accident container is lifted into the emergency handling container by a front-end crane, causing the bottom of the accident container to press against the receiving bracket. The receiving bracket rotates around the first pivot and pulls the drive chain. S2. The transmission chain drives the positioning block to rotate around the second rotating shaft, and the U-shaped positioning groove of the positioning block disengages from the positioning pin, releasing the limit; S3. The water pressure inside the main body of the water tank pushes the drain outlet baffle to flip open around the first rotating rod, and the water flows through the guide pipe to pour into the emergency treatment box; S4. The rotation of the first rotating rod drives the first bevel gear to mesh with the second bevel gear. The second rotating rod and the transmission gear drive the transmission rack to move down, and the sealing plate disengages from the air inlet, allowing external air to enter the balance tank and pressurize it. S5. After the emergency is over, remove the container from the accident site, reset the support bracket, re-engage the positioning block with the positioning pin, close the drain outlet baffle, and reset the sealing plate to block the air inlet.

[0026] The entire process is automated through pure mechanical linkage, enabling automatic triggering, automatic water release, automatic air pressure balancing, and automatic reset without manual intervention. The response time is shortened to the instant the container is placed, perfectly meeting the needs of the "golden period for risk control" in hazardous materials accidents. The steps are simple and logically closed-loop, making it easy to operate. It is also power-free and can still work normally in extreme scenarios, improving the safety and reliability of emergency response at port terminals.

[0027] As can be seen from the above technical solutions, the beneficial effects of the present invention are: 1. This device uses the gravity of the container itself to trigger a purely mechanical linkage mechanism, requiring no manual operation or additional power. Once the container is placed into the emergency treatment box, the drain outlet baffle can be unlocked instantly, and water flows through the guide pipe to precisely pour water onto the container, shortening the emergency response time to the second level. This perfectly meets the disposal needs of the "golden period" for hazardous materials accidents, effectively curbing the spread of fire and the diffusion of leaked substances.

[0028] 2. This device avoids reliance on easily faulty components such as electrical control units and motors through a purely mechanical transmission structure, and can still work stably in complex port environments or power outage scenarios; the synchronous linkage design of water discharge and air intake automatically balances the air pressure inside the tank through bevel gear and gear rack transmission, which greatly improves drainage efficiency and avoids water waste; the design of the sealing plate and rectangular sealing ring ensures sealing in non-emergency situations, preventing debris from entering and water from evaporating, and also reduces maintenance costs.

[0029] 3. This device requires no additional equipment room and can be directly installed outdoors, saving on infrastructure investment; all components work smoothly and are easy to reset, and can quickly return to standby status after an emergency, making it highly reusable; the overall structure is structurally balanced and has a low failure rate, which not only reduces manpower scheduling costs but also improves water resource utilization through precise irrigation, providing a safe, efficient, and economical solution for emergency handling of dangerous goods containers in ports. Attached Figure Description

[0030] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0032] Figure 2 This is a front view structural diagram of a specific embodiment of the present invention.

[0033] Figure 3 This is a top view of a specific embodiment of the present invention.

[0034] Figure 4 This is a schematic diagram of the structure of the water tank support frame according to a specific embodiment of the present invention.

[0035] Figure 5 This is a schematic diagram of the structure of the receiving bracket according to a specific embodiment of the present invention.

[0036] Figure 6 This is a schematic diagram of the positioning block in a specific embodiment of the present invention.

[0037] Figure 7 This is a schematic diagram of the sealing plate according to a specific embodiment of the present invention.

[0038] Figure 8 This is a schematic diagram of the transmission rack according to a specific embodiment of the present invention.

[0039] Figure 9 This is a schematic diagram of the air intake cover according to a specific embodiment of the present invention.

[0040] In the diagram: 1. Water tank support frame; 2. Water tank body; 3. Water injection pipe; 4. Emergency treatment box; 5. Water discharge mechanism; 51. Receiving bracket; 52. First rotating shaft; 53. Transmission chain; 54. Positioning block; 55. Second rotating shaft; 56. U-shaped positioning groove; 57. First rotating rod; 571. First bevel gear; 572. Second bevel gear; 573. Second rotating rod; 574. Transmission gear; 575. Transmission rack; 576. Support block; 577. Guide frame; 578. Receiving rod; 579. Sealing plate; 5791. Guide slider; 5792. Rectangular sealing ring; 5793. Guide groove; 5794. Rectangular sealing groove; 58. Drain outlet baffle; 59. Positioning pin; 6. Air inlet hood; 7. Air inlet hole; 8. Guide pipe. Detailed Implementation

[0041] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0042] Example 1: Refer to Figure 1-9This embodiment provides a gravity-triggered high-level water tank emergency automatic water discharge device, including a water tank support frame 1; a water tank body 2 is installed on the top of the water tank support frame 1, a water injection pipe 3 is fixedly connected to one side of the water tank body 2, an emergency treatment box 4 is installed on one side of the water tank support frame 1, a water discharge mechanism 5 is installed inside the emergency treatment box 4, and a guide pipe 8 is installed inside the water tank support frame 1; the water discharge mechanism 5 includes a receiving bracket 51 movably installed on the inner wall of the emergency treatment box 4, a first rotating shaft 52 is installed on the outer wall of the receiving bracket 51, a transmission chain 53 is fixedly connected to one side of the receiving bracket 51, a positioning block 54 is installed at one end of the transmission chain 53, and a second rotating shaft 55 is fixedly connected to the inner wall of the positioning block 54; the water discharge mechanism 5 also includes a first rotating rod 57 movably installed on the outer wall of the water tank body 2, a drain outlet baffle 58 is installed on the outer wall of the first rotating rod 57, and a positioning pin 59 is fixedly connected to one side of the drain outlet baffle 58.

[0043] The container support frame 1 provides stable support for the main body 2 of the water tank, and the water injection pipe 3 is used to replenish the fire-fighting water to the main body 2 of the water tank. When a dangerous goods accident occurs at the port terminal, the accident container is hoisted into the emergency treatment container 4. Its own weight squeezes the receiving bracket 51 on the inner wall of the emergency treatment container 4. The receiving bracket 51 rotates around the first rotating shaft 52 and pulls the transmission chain 53. The transmission chain 53 drives the positioning block 54 at one end to rotate around the second rotating shaft 55, thereby releasing the restriction on the positioning pin 59 on the drain outlet baffle 58. Under its own pressure, the water in the main body 2 of the water tank pushes the drain outlet baffle 58 to open around the first rotating rod 57. The water flows through the guide pipe 8 in the water tank support frame 1 and is accurately poured into the accident container in the emergency treatment container 4.

[0044] This device can trigger a purely mechanical water release by the weight of the container itself, without the need for manual operation or additional power. It completely solves the problem of delayed emergency water release from traditional high-level water tanks, greatly improves the efficiency of handling hazardous materials accidents, and has a simple structure and high reliability, making it suitable for emergency scenarios at port terminals.

[0045] Specifically, refer to Figure 3-5 The receiving bracket 51 forms a rotating structure with the emergency treatment box 4 through the first rotating shaft 52, and the transmission chain 53 is symmetrically arranged about the central axis of the receiving bracket 51.

[0046] The receiving bracket 51 forms a rotatable structure with the emergency treatment box 4 through the first rotating shaft 52, ensuring that the accident container can be smoothly flipped when it is lowered; the transmission chain 53 is symmetrically arranged with the central axis of the receiving bracket 51, so that the traction force when the receiving bracket 51 is flipped is evenly transmitted to the positioning block 54, avoiding transmission jamming caused by unilateral force.

[0047] This device, through the symmetrical arrangement of the transmission chain 53 and the rotatable support bracket 51, ensures the stability and balance of power transmission, reduces the probability of mechanical failure, further improves the triggering reliability of the emergency water release device, and ensures a rapid response in the event of an accident.

[0048] Specifically, refer to Figure 6 The positioning block 54 can form a rotating structure with the water tank body 2 through the second rotating shaft 55. The positioning block 54 has a U-shaped positioning groove 56, and the positioning block 54 can be engaged with the positioning pin 59 through the U-shaped positioning groove 56.

[0049] The positioning block 54 forms a rotatable structure with the water tank body 2 via the second rotating shaft 55. The U-shaped positioning groove 56 is tightly engaged with the positioning pin 59 in non-emergency conditions, firmly restricting the movement of the drain outlet baffle 58. When the transmission chain 53 pulls the positioning block 54 to rotate, the U-shaped positioning groove 56 smoothly disengages from the positioning pin 59, releasing the restriction on the drain outlet baffle 58.

[0050] This device achieves reliable limiting of the drain outlet baffle 58 through the interlocking design of the U-shaped positioning groove 56 and the positioning pin 59, eliminating the risk of water leakage in non-emergency situations. At the same time, the rotatable positioning block 54 ensures smooth release of the limit action, avoiding the impact of jamming on the water discharge efficiency, and taking into account both the sealing performance and response speed of the device.

[0051] Specifically, refer to Figure 2 and 7 The drain outlet baffle 58 can form a rotating structure with the water tank body 2 through the first rotating rod 57. The water tank body 2 is symmetrically arranged with respect to the central axis of the water tank support frame 1, and the position of the drain outlet baffle 58 corresponds to the inlet end of the guide pipe 8.

[0052] The drain outlet baffle 58 forms a rotatable structure with the water tank body 2 via the first rotating rod 57, ensuring that it can be quickly flipped open under water pressure; the water tank body 2 is symmetrically arranged with the central axis of the water tank support frame 1, which can store sufficient fire-fighting water and bear the force evenly; the position of the drain outlet baffle 58 is precisely aligned with the inlet end of the guide pipe 8, ensuring that the water flow can be completely introduced into the guide pipe 8 after opening, without waste or irrigation deviation.

[0053] The symmetrical arrangement of the main body 2 of the water tank improves the overall stability and water storage capacity of the device. The precise correspondence between the drain outlet baffle 58 and the guide pipe 8 realizes the efficient guidance of water flow, so that the fire water can be concentrated to pour into the emergency container, improve the cooling and fire extinguishing effect, and reduce water waste.

[0054] Specifically, refer to Figure 8The top end of the first rotating rod 57 is fixedly connected to a first bevel gear 571, the outer wall of the first bevel gear 571 is meshed with a second bevel gear 572, one side of the second bevel gear 572 is fixedly connected to a second rotating rod 573, one end of the second rotating rod 573 is fixedly connected to a transmission gear 574, the outer wall of the transmission gear 574 is meshed with a transmission rack 575, the outer wall of the second rotating rod 573 is movably connected to a support block 576, and the support block 576 is fixedly connected to the water tank body 2.

[0055] When the drain outlet baffle 58 is opened, it drives the first rotating rod 57 to rotate synchronously. The first bevel gear 571 at the top of the first rotating rod 57 meshes with the second bevel gear 572, which in turn drives the second rotating rod 573 to rotate around the support block 576. The transmission gear 574 at one end of the second rotating rod 573 drives the meshing transmission rack 575 to move in a straight line. The support block 576 is fixedly connected to the water tank body 2, providing stable support for the second rotating rod 573.

[0056] This device achieves synchronous triggering of water discharge and air intake preparation through the mechanical linkage of bevel gears and gear racks, eliminating the need for an additional drive mechanism and simplifying the device structure. The fixed design of support block 576 ensures the stability of the transmission process, avoids transmission deviation, and lays a reliable foundation for subsequent air pressure balancing.

[0057] Specifically, refer to Figure 8 The outer wall of the transmission rack 575 is movably connected to a guide frame 577. The guide frame 577 has a U-shaped structure and is fixedly connected to the main body 2 of the water tank. The transmission rack 575 can form a sliding structure with the guide frame 577.

[0058] The U-shaped guide frame 577 is fixedly connected to the main body 2 of the water tank. Its inner wall is in sliding engagement with the transmission rack 575, providing precise guidance for the linear movement of the transmission rack 575 and limiting its lateral deviation.

[0059] This device, through the U-shaped guide frame 577, can effectively prevent the skewing and jamming of the transmission rack 575 during movement, ensuring the smoothness and accuracy of the gear rack transmission, thereby guaranteeing the reliability of the subsequent sealing plate 579 action and improving the stability of the entire linkage system.

[0060] Specifically, refer to Figure 3 , 4 7. A receiving rod 578 is fixedly connected to the top of the transmission rack 575. A sealing plate 579 is fixedly connected to one end of the receiving rod 578. An air inlet hood 6 is fixedly connected to the top of the water tank body 2. An air inlet hole 7 is opened inside the air inlet hood 6.

[0061] When the transmission rack 575 moves downward, it drives the top fixed support rod 578 to move synchronously. The support rod 578 pulls the sealing plate 579 at one end to disengage from the air inlet 7 of the air inlet cover 6 at the top of the water tank body 2. External air enters the water tank body 2 through the air inlet 7. In non-emergency situations, the sealing plate 579 blocks the air inlet 7 to ensure the airtightness of the water tank body 2.

[0062] This device balances the air pressure inside and outside the water tank body 2 through the synchronous linkage of water discharge and air intake, which can avoid the negative pressure inside the tank causing poor drainage and greatly improve the drainage speed. The sealing design of the sealing plate 579 can prevent external debris from entering the water tank body 2, while reducing water evaporation, thus taking into account both drainage efficiency and device maintainability.

[0063] Specifically, refer to Figure 7 and 9 The outer wall of the sealing plate 579 is fixedly connected to a guide slider 5791, and the inside of the air intake hood 6 is provided with a guide groove 5793. The guide slider 5791 can form a sliding structure with the air intake hood 6 through the guide groove 5793.

[0064] The guide slider 5791 on the outer wall of the sealing plate 579 is embedded in the guide groove 5793 of the air intake shroud 6. When the sealing plate 579 moves with the transmission rack 575, the guide slider 5791 slides along the guide groove 5793 to provide precise guidance for the sealing plate 579.

[0065] This device, through the cooperation of guide slider 5791 and guide groove 5793, can ensure the accuracy of the movement trajectory of sealing plate 579, avoid its deviation which would cause the air inlet 7 to be not tightly sealed or not fully opened, and further improve the reliability of air pressure balance and the sealing performance of the device.

[0066] Specifically, refer to Figure 7 and 9 A rectangular sealing ring 5792 is fixedly connected to the top of the sealing plate 579, and a rectangular sealing groove 5794 is provided inside the air intake hood 6. The rectangular sealing ring 5792 and the rectangular sealing groove 5794 are adapted to each other and can form a snap-fit ​​connection.

[0067] In non-emergency situations, when the sealing plate 579 is reset, the rectangular sealing ring 5792 on its top precisely engages with the rectangular sealing groove 5794 of the air intake shroud 6, using the elastic deformation of the sealing ring to fill the gap and achieve a tight seal of the air intake 7.

[0068] This device can significantly improve the sealing effect of the air inlet 7 through the interlocking design of the rectangular sealing ring 5792 and the rectangular sealing groove 5794. It can prevent water leakage and evaporation in the main body of the water tank 2, and also prevent dust, impurities and other contaminants from entering the tank and polluting the water, thus extending the service life of the device and reducing maintenance costs.

[0069] Example 2: Based on Example 1, this example provides a method for using a gravity-triggered high-level water tank emergency automatic water discharge device, including the following steps: S1. The accident container is lifted into the emergency handling container 4 by a front-end crane, so that the bottom of the accident container is squeezed against the support bracket 51. The support bracket 51 rotates around the first pivot 52 and pulls the transmission chain 53. S2. The transmission chain 53 drives the positioning block 54 to rotate around the second rotating shaft 55, and the U-shaped positioning groove 56 of the positioning block 54 disengages from the positioning pin 59, thus releasing the limit. S3. The water pressure inside the main body 2 of the water tank pushes the drain outlet baffle 58 to flip open around the first rotating rod 57, and the water flows through the guide pipe 8 to pour into the emergency treatment box 4; S4. The rotation of the first rotating rod 57 drives the first bevel gear 571 to mesh with the second bevel gear 572. The second rotating rod 573 and the transmission gear 574 drive the transmission rack 575 to move down, and the sealing plate 579 disengages from the air inlet 7, allowing external air to enter the balance tank. S5. After the emergency is over, remove the container from the accident site, reset the support bracket 51, re-engage the positioning block 54 with the positioning pin 59, close the drain outlet baffle 58, and reset the sealing plate 579 to block the air inlet 7.

[0070] S1 The emergency container is lifted to the emergency handling container 4 by a front-end crane. The container's weight compresses the receiving bracket 51, triggering the traction action of the transmission chain 53. S2 The transmission chain 53 drives the positioning block 54 to rotate, and the U-shaped positioning groove 56 disengages from the positioning pin 59, releasing the limit. S3 The water pressure inside the water tank body 2 pushes the drain outlet baffle 58 to open, and water flows through the guide pipe 8 to irrigate the emergency container. S4 The first rotating rod 579 drives the bevel gear and gear rack to work together, and the sealing plate 579 disengages from the air inlet 7, allowing external air to enter and balance the air pressure. S5 After the emergency ends, the container is removed, the receiving bracket 51 is reset, the positioning block 54 re-engages the positioning pin 59, and the drain outlet baffle 58 and the sealing plate 579 are reset and sealed.

[0071] The entire process is automated through pure mechanical linkage, enabling automatic triggering, automatic water release, automatic air pressure balancing, and automatic reset without manual intervention. The response time is shortened to the instant the container is placed, perfectly meeting the needs of the "golden period for risk control" in hazardous materials accidents. The steps are simple and logically closed-loop, making it easy to operate. It is also power-free and can still work normally in extreme scenarios, improving the safety and reliability of emergency response at port terminals.

[0072] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gravity-triggered high-level water tank emergency automatic water discharge device, comprising a water tank support frame (1), characterized in that, The water tank support frame (1) is topped with a water tank body (2), and a water injection pipe (3) is fixedly connected to one side of the water tank body (2). An emergency treatment box (4) is installed on one side of the water tank support frame (1). A water discharge mechanism (5) is installed inside the emergency treatment box (4), and a guide pipe (8) is installed inside the water tank support frame (1). The water discharge mechanism (5) includes a receiving bracket (51) movably installed on the inner wall of the emergency treatment box (4), and a first... A rotating shaft (52) is fixedly connected to one side of the receiving bracket (51), and a transmission chain (53) is fixedly connected to one end of the transmission chain (53). A positioning block (54) is installed at one end of the transmission chain (53), and a second rotating shaft (55) is fixedly connected to the inner wall of the positioning block (54). The water discharge mechanism (5) also includes a first rotating rod (57) movably installed on the outer wall of the water tank body (2). A drain outlet baffle (58) is installed on the outer wall of the first rotating rod (57), and a positioning pin (59) is fixedly connected to one side of the drain outlet baffle (58).

2. The gravity-triggered high-level water tank emergency automatic water discharge device according to claim 1, characterized in that: The receiving bracket (51) forms a rotating structure with the emergency treatment box (4) through the first rotating shaft (52), and the transmission chain (53) is symmetrically arranged with respect to the central axis of the receiving bracket (51).

3. The gravity-triggered high-level water tank emergency automatic water discharge device according to claim 1, characterized in that, The positioning block (54) can form a rotating structure with the water tank body (2) through the second rotating shaft (55). The positioning block (54) has a U-shaped positioning groove (56), and the positioning block (54) can be engaged with the positioning pin (59) through the U-shaped positioning groove (56).

4. The gravity-triggered high-level water tank emergency automatic water discharge device according to claim 1, characterized in that: The drain outlet baffle (58) can form a rotating structure with the water tank body (2) through the first rotating rod (57). The water tank body (2) is symmetrically arranged with respect to the central axis of the water tank support frame (1), and the position of the drain outlet baffle (58) corresponds to the inlet end of the guide pipe (8).

5. The gravity-triggered high-level water tank emergency automatic water discharge device according to claim 1, characterized in that: The top end of the first rotating rod (57) is fixedly connected to a first bevel gear (571), the outer wall of the first bevel gear (571) is meshed with a second bevel gear (572), one side of the second bevel gear (572) is fixedly connected to a second rotating rod (573), one end of the second rotating rod (573) is fixedly connected to a transmission gear (574), the outer wall of the transmission gear (574) is meshed with a transmission rack (575), the outer wall of the second rotating rod (573) is movably connected to a support block (576), and the support block (576) is fixedly connected to the main body (2) of the water tank.

6. The gravity-triggered high-level water tank emergency automatic water discharge device according to claim 5, characterized in that: The outer wall of the transmission rack (575) is movably connected to a guide frame (577). The guide frame (577) is a U-shaped structure and is fixedly connected to the main body (2) of the water tank. The transmission rack (575) can form a sliding structure with the guide frame (577).

7. The gravity-triggered high-level water tank emergency automatic water discharge device according to claim 5, characterized in that: The top of the transmission rack (575) is fixedly connected to a support rod (578), and one end of the support rod (578) is fixedly connected to a sealing plate (579). The top of the water tank body (2) is fixedly connected to an air inlet hood (6), and an air inlet hole (7) is provided inside the air inlet hood (6).

8. The gravity-triggered high-level water tank emergency automatic water discharge device according to claim 7, characterized in that: The outer wall of the sealing plate (579) is fixedly connected to a guide slider (5791), and the inside of the air intake hood (6) is provided with a guide groove (5793). The guide slider (5791) can form a sliding structure with the air intake hood (6) through the guide groove (5793).

9. The gravity-triggered high-level water tank emergency automatic water discharge device according to claim 7, characterized in that: A rectangular sealing ring (5792) is fixedly connected to the top of the sealing plate (579), and a rectangular sealing groove (5794) is provided inside the air intake hood (6). The rectangular sealing ring (5792) and the rectangular sealing groove (5794) are adapted to each other and can form a snap-fit ​​connection.

10. The method of using a gravity-triggered high-level water tank emergency automatic water discharge device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. The accident container is lifted into the emergency handling box (4) by the front crane, so that the bottom of the accident container is squeezed against the receiving bracket (51), and the receiving bracket (51) rotates around the first rotating shaft (52) and pulls the transmission chain (53). S2. The transmission chain (53) drives the positioning block (54) to rotate around the second rotating shaft (55), and the U-shaped positioning groove (56) of the positioning block (54) disengages from the positioning pin (59) and releases the limit; S3. The pressure of the water inside the main body (2) of the water tank pushes the drain outlet baffle (58) to flip open around the first rotating rod (57), and the water flows through the guide pipe (8) to pour into the emergency treatment box (4); S4. The first rotating rod (57) rotates and drives the first bevel gear (571) to mesh with the second bevel gear (572). The second rotating rod (573) and the transmission gear (574) drive the transmission rack (575) to move down, and the sealing plate (579) disengages from the air inlet (7), allowing external air to enter the balance tank. S5. After the emergency is over, remove the container from the accident site, reset the support bracket (51), re-engage the positioning block (54) with the positioning pin (59), close the drain outlet baffle (58), and reset the sealing plate (579) to block the air inlet (7).

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